EP0044594B1 - Procédé et installation pour remplacer des cathodes - Google Patents

Procédé et installation pour remplacer des cathodes Download PDF

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Publication number
EP0044594B1
EP0044594B1 EP81200797A EP81200797A EP0044594B1 EP 0044594 B1 EP0044594 B1 EP 0044594B1 EP 81200797 A EP81200797 A EP 81200797A EP 81200797 A EP81200797 A EP 81200797A EP 0044594 B1 EP0044594 B1 EP 0044594B1
Authority
EP
European Patent Office
Prior art keywords
cathodes
cells
longitudinal axis
cell
lifted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81200797A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0044594A1 (fr
Inventor
Jean François Viellefont
Robert Dierckxsens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metallurgie Hoboken-Overpelt SA
Original Assignee
Metallurgie Hoboken-Overpelt SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metallurgie Hoboken-Overpelt SA filed Critical Metallurgie Hoboken-Overpelt SA
Publication of EP0044594A1 publication Critical patent/EP0044594A1/fr
Application granted granted Critical
Publication of EP0044594B1 publication Critical patent/EP0044594B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing

Definitions

  • the object of the present invention is to provide a method avoiding the drawbacks mentioned above.
  • the object of the invention is to provide an installation of the type defined above, avoiding the aforementioned drawbacks.
  • the means for modifying the mutual position of the two spreader parts are arranged to move the two spreader parts transversely with respect to the longitudinal axis of the latter and the double spreader further comprises , means for moving the two spreader parts in opposite directions, along their longitudinal axis.
  • the double spreader further comprises means for moving the two spreader parts simultaneously in the same direction along their longitudinal axis.
  • the electrolysis room 1 comprises four parallel rows 2 of oblong electrolytic cells 3 located side by side, an overhead crane 4 with carriage 5, to which is attached a double lifting beam 6 for cathodes and an installation counting 7.
  • the overhead crane 4, provided with wheels 8 and actuated by a motor not shown, can move back and forth on the rails 9 parallel to the rows of tanks 2.
  • the carriage 5 provided with wheels 10 and actuated by a motor not shown, can move back and forth on the rails 11 which are fixed to the bridge 4, transversely to the rows of tanks 2.
  • the stripping installation 7 is provided with an inlet 12 for stripped cathodes and an outlet 13 for stripped cathodes.
  • the overhead crane 4 and the carriage 5 are of the conventional type and it will not go into details as to their structure. He will not go into details either with regard to the construction of the counting facility 7, which is not the subject of the present invention.
  • each tank 3 comprises a group of cathodes 14 and alternating therewith a group of anodes 15, suspended vertically at equal distance and transversely with respect to the longitudinal axis of the tank.
  • the distance between two successive cathodes is 124 mm; each tank 3 contains thirty-two cathodes 14 and thirty-three anodes 15.
  • An anode 15 consists of a cast plate of impure copper which is provided at its upper part with two ears 16 laterally projecting allowing the anode 15 to be suspended in the tank 3.
  • a cathode 14 (see FIG.
  • 3) consists of a plate 17 of laminated copper which is attached to a copper suspension bar 18 and which has at its upper part two openings 19 which make it possible to reassemble the cathode 14 by means of a pair of hooks.
  • the ends 20 of the suspension bar 18 make it possible to suspend the cathode 14 in the tank 3.
  • each row of tanks 2 are conventionally connected to a current source, not shown.
  • the transport of the current through a row of tanks 2 is also done in a conventional manner, by means of copper conductors 21, which are housed on the longitudinal walls 22 of the tanks 3 and which each electrically connect a group of cathodes 14 to a group adjacent anodes 15, as shown schematically in Figure 2.
  • a suitable electrolyte flows through the cells 3.
  • the impure anodes dissolve during electrolysis and a deposit of pure copper, not shown, is formed on both sides of the cathodes. When this deposit has reached a sufficient thickness, the cathodes 14 must be replaced by stripped cathodes. For this replacement of cathodes 14 is used, in combination with the traveling crane 4 and the carriage 5, the double spreader 6 which will be described below in detail.
  • the double spreader 6 is composed of a fixed frame 23 on which are mounted two carriages 24 and 24 'which each carry a spreader part 25 and 25'.
  • the chassis 23 comprises three beams 26, 27 and 28 and below these two cross members 29 and 31.
  • the cross members 29 and 31 have a U-shaped profile and serve as a raceway for the wheels 32 of the carriages 24 and 24 '.
  • the carriage 24 is actuated by a hydraulic cylinder 33 which pivots on the hinge 34 fixed below the beam 27 and whose rod 35 pivots at its end on the hinge 36 fixed to the carriage.
  • the carriage 24 ' is actuated in the same way by a hydraulic cylinder 33' which pivots on the hinge 34 'fixed below the beam 27 and whose rod 35' pivots at its end on the hinge 36 'fixed to the carriage.
  • the cylinders 33 and 33 ′ are identical and their stroke is such that, when their rod is removed, the axis AA of the spreader part 25 coincides with the axis A'-A 'of the spreader part 25', and that when their rod is completely extended, the distance between the above axes is equal to the distance between the axes of two adjacent tanks 3.
  • the cylinders 33 and 33 ' have a stroke of 600 mm. Since cylinders 33 and 33 'are not housed centrally with respect to the carriages 24 and 24', these are provided at their upper part with a pair of guide wheels 37 for which a raceway 38 is provided below sleepers 26, 27 and 28.
  • Each spreader part 25 and 25 comprises a beam 39, to which are attached laterally a number of crosspieces 40 which are all provided with a pair of hooks 41.
  • the number of crosspieces 40 per spreader part is equal to half the number of cathodes 14 present in a tank 3.
  • a spreader part therefore comprises sixteen sleepers 40 or, in other words, sixteen pairs of hooks 41.
  • the distance between two successive sleepers 40 or, in other words, between two pairs of successive hooks is equal to twice the distance between two successive cathodes 14 in a tank 3. In the present case, this distance is therefore equal to 248 mm.
  • the distance between the two hooks 41 of a pair of hooks is equal to the distance between the two openings 19 in the cathode 14, in this case 340 mm.
  • each part of the lifting beam 25 and 25 ′ is mounted under its carriage 24 and 24 'so that it is able to move along its longitudinal axis relative to the carriage.
  • each carriage 24 and 24 ' is provided at its lower part with two pairs of sliding sleeves 42 through which pass a pair of sliding rods 43, the ends of which are fixed to two transverse plates 44 which are fixed in turn on beam 39.
  • the carriage 24 is also provided at its lower part with two hydraulic cylinders connected back to back: the cylinder 45, which can be defined as a passage cylinder from an even position to an odd position and whose rod 46 pivots at its end on the hinge 47 which is fixed to the transverse plate 44 from behind, that is to say the one located highest in FIG. 6, and the cylinder 48, which can be defined as a latching-unlatching cylinder and the rod 49 pivots at its end on the hinge 50 which is fixed below the carriage 24.
  • the cylinder 45 which can be defined as a passage cylinder from an even position to an odd position and whose rod 46 pivots at its end on the hinge 47 which is fixed to the transverse plate 44 from behind, that is to say the one located highest in FIG. 6, and the cylinder 48, which can be defined as a latching-unlatching cylinder and the rod 49 pivots at its end on the hinge 50 which is fixed below the carriage 24.
  • the underside of the carriage 24 ' is provided with a cylinder for passing from an even position to an odd position 45', the rod 46 'of which pivots at its end on the hinge 47' which is fixed to the plate. spacing 44 from before and an attachment-detachment cylinder 48 'whose rod 49' pivots at its end on the hinge 50 'which is fixed below the carriage 24'.
  • the rod 46 ' By removing the rod 46 ', the spreader part 25' is moved rearward and vice versa.
  • the withdrawal of the rod 49 ′ also causes the movement of the spreader part 25 ′ to the rear and vice versa.
  • the cylinders passing from the even position to the odd position 45 and 45 ′ have a stroke which is equal to the distance between two successive cathodes 14, therefore a stroke of 124 mm in the present case.
  • the double spreader 6 has the configuration of FIG. 4, where the right spreader part 25 'is ahead of the left spreader part 25 over a distance which is equal to the distance between two successive cathodes 14 in the tank 3.
  • the two spreader parts 25 and 25' move forward over a distance of 50 mm.
  • the double spreader 6 has a configuration which is the reverse of that of FIG. 4 and where the left spreader part 25 is therefore in advance on the right lifting beam part 25 'over a distance of 124 mm.
  • the rod 49 ' is out and the rod 49 is withdrawn, the two spreader parts 25 and 25' again advance over a distance of 50 mm.
  • the double spreader 6 is conventionally suspended from a transmission box 51 with four drums 52 by means of four cables 53 and four pulleys 54, these being connected by hooks not shown to the four suspension eyelets 55 fixed to the chassis 23 of the double spreader 6.
  • the guide device 56 prevents any movement other than vertical, of the chassis 23 relative to the carriage 5.
  • the rod 49 ' is then removed and the rod 49 withdrawn, which advances 50 mm the two spreader parts 25 and 25 'and terminate the pairs of hooks 41 of the spreader part 25 with their feet in the openings 29 of the paired cathodes 14 of the first tank, while the pairs of hooks 41 of the spreader part 25 'end with their feet in the openings 29 of the odd cathodes 14 of the second tank.
  • the double spreader 6 is then reassembled and the configuration of FIG. 9 is thus obtained on reassembly, where, for reasons of clarity, the anodes 25 have not been shown.
  • the overhead crane is brought to the top of the entrance 12 of the skinning installation 7.
  • the rods 35 and 35 ′ are removed so that the axis AA of the lifting beam part 25 coincides with the axis A'-A 'of the spreader part 25' and that a compact group of cathodes 16 raised is obtained.
  • the double spreader 6 is lowered until the ends 20 of the suspension bars 18 of the cathodes 14 come to rest on a transport device not shown, which is provided at the inlet 12, thus freeing the feet from the pairs of hooks 41 in the openings 19.
  • the rod 49 ' is then again withdrawn and the rod 49 extended, which causes the two spreader parts 25 and 25 to move back '' of 50 mm, which thus release from the cathodes 14 which they are now suspended at the entrance 12 of the stripping installation 7.
  • the double lifting beam 6 is reassembled, the traveling crane 4 is brought up above the third and fourth tanks 3 of the rows of tanks 2 and in the meantime the rods 35 and 35 'have again come out.
  • the double spreader 6 is lowered there and a compact group of stripped cathodes is brought up there, brings the bridge 4 again to above the head of the rows of tanks 2 and in the meantime the rods 35 and 35 'are brought out, the carriage 5 is brought up to the top of the first and the second tank from the first row of tanks 2 in the same position as it had during the first operation in these tanks, the double spreader 6 is lowered until the ends 20 of the suspension bars 18 of the stripped cathodes 14 come to rest rest on the walls 22 of the tanks thus freeing the feet of the pairs of hooks 41 in the openings 19, the two spreader parts 25 and 25 ′ are moved back by 50 mm by removing the rod 49 ′ and taking out the rod 49, and we the double spreader 6 rises again.
  • the even cathodes of the first tank of the first row of tanks are replaced and at the same time the odd cathodes of the second tank of this same row.
  • the next outward path then goes from the ninth and tenth vats of the first row of vats to the inlet 12 of the skinning installation 7, and the return path which follows, from the outlet 13 of the skinning installation 7 to the third and fourth tanks of the first row of tanks.
  • the entire first row of cells is thus traversed and then one proceeds to the following rows until all the even cathodes of the odd cells and all the odd cathodes of the even cells are replaced.
  • the rods 46 and 46 ′ are removed and replacement of the odd cathodes of the odd tanks and of the even cathodes of the even tanks are started.
  • the method of the invention has the advantages that there is an equal distribution of the current in the cells where the replacement is in progress, that the number of return journeys between the electrolysis cells and the he skinning installation is halved and that its application in existing electrolytic factories entails only low investment costs, since it requires only the replacement of the existing spreaders by the double spreader described above.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
EP81200797A 1980-07-21 1981-07-10 Procédé et installation pour remplacer des cathodes Expired EP0044594B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU82645A LU82645A1 (fr) 1980-07-21 1980-07-21 Procede et installation pour remplacer des cathodes
LU82645 1980-07-21

Publications (2)

Publication Number Publication Date
EP0044594A1 EP0044594A1 (fr) 1982-01-27
EP0044594B1 true EP0044594B1 (fr) 1983-06-22

Family

ID=19729451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200797A Expired EP0044594B1 (fr) 1980-07-21 1981-07-10 Procédé et installation pour remplacer des cathodes

Country Status (7)

Country Link
US (1) US4392934A (enrdf_load_stackoverflow)
EP (1) EP0044594B1 (enrdf_load_stackoverflow)
JP (1) JPS5751279A (enrdf_load_stackoverflow)
AU (1) AU542521B2 (enrdf_load_stackoverflow)
CA (1) CA1182425A (enrdf_load_stackoverflow)
DE (1) DE3160488D1 (enrdf_load_stackoverflow)
LU (1) LU82645A1 (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU83152A1 (fr) * 1981-02-19 1982-09-10 Metallurgie Hoboken Appareil pour relier electriquement des cuves electrolytiques
USD303282S (en) 1986-01-02 1989-09-05 I. Jay Bassett Combined tank and cover assembly for use in electrodeposition coating operations
US4663014A (en) * 1986-01-02 1987-05-05 I. Jay Bassett Electrodeposition coating apparatus
US4755273A (en) * 1986-01-02 1988-07-05 Bassett I Jay Cover for coating tanks
JPH0350684U (enrdf_load_stackoverflow) * 1989-09-22 1991-05-16
AU622994B2 (en) * 1990-04-02 1992-04-30 Cominco Ltd. Electrode handling system and machine
EP0679735B1 (en) 1994-04-28 2001-05-23 Mitsui Mining & Smelting Co., Ltd. Guide apparatus for up/down movement of a hoisting apparatus for delivery of electrode plates
ES2160000B1 (es) * 1998-02-13 2002-05-01 Asturiana De Zinc Tecnologia S Puente-grua para instalaciones de produccion electrolitica de metales no ferreos.
US6922886B2 (en) * 2002-07-06 2005-08-02 John L. Costley, Jr. APT-1 (anode placement tool-model 1)
KR101637053B1 (ko) * 2008-09-15 2016-07-06 이피씨엠 서비시스 엘티디. 전극 세척 방법 및 시스템
CN103539002B (zh) * 2013-10-17 2015-10-28 江西稀有稀土金属钨业集团有限公司 一种电解铜板吊装装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314877A (en) * 1963-08-29 1967-04-18 Joseph Novitsky Rack Mfg Inc Plating and anodizing rack
US3562131A (en) * 1968-03-21 1971-02-09 Bunker Hill Co Cathode handling equipment
US3792891A (en) * 1972-04-21 1974-02-19 Inter Lakes Eng Co Pickup unit for cathode plates or the like
JPS5537598B2 (enrdf_load_stackoverflow) * 1974-06-07 1980-09-29
JPS5142002A (en) * 1974-10-08 1976-04-09 Mitsubishi Metal Corp Tasudenkaisono tanrakuinkyokubanokenchishiteshuseisuru sochi
JPS5296904A (en) * 1976-02-10 1977-08-15 Mitsui Mining & Smelting Co Apparatus for automatic replacement of plate electrode in electrolysis of metals

Also Published As

Publication number Publication date
AU542521B2 (en) 1985-02-21
JPS5751279A (en) 1982-03-26
CA1182425A (en) 1985-02-12
JPS6410598B2 (enrdf_load_stackoverflow) 1989-02-22
EP0044594A1 (fr) 1982-01-27
US4392934A (en) 1983-07-12
LU82645A1 (fr) 1982-02-17
DE3160488D1 (en) 1983-07-28
AU7306881A (en) 1982-01-28

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